diff options
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/manage.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 77a51be3601..ae1b684e048 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -596,26 +596,29 @@ int request_irq(unsigned int irq, irq_handler_t handler, action->next = NULL; action->dev_id = dev_id; + retval = setup_irq(irq, action); + if (retval) + kfree(action); + #ifdef CONFIG_DEBUG_SHIRQ if (irqflags & IRQF_SHARED) { /* * It's a shared IRQ -- the driver ought to be prepared for it * to happen immediately, so let's make sure.... - * We do this before actually registering it, to make sure that - * a 'real' IRQ doesn't run in parallel with our fake + * We disable the irq to make sure that a 'real' IRQ doesn't + * run in parallel with our fake. */ unsigned long flags; + disable_irq(irq); local_irq_save(flags); + handler(irq, dev_id); + local_irq_restore(flags); + enable_irq(irq); } #endif - - retval = setup_irq(irq, action); - if (retval) - kfree(action); - return retval; } EXPORT_SYMBOL(request_irq); |